#ifndef DOMImplementationSource_HEADER_GUARD_

#define DOMImplementationSource_HEADER_GUARD_

/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You under the Apache License, Version 2.0

 * (the "License"); you may not use this file except in compliance with

 * the License.  You may obtain a copy of the License at

 * 

 *      http://www.apache.org/licenses/LICENSE-2.0

 * 

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

/*

 * $Id: DOMImplementationSource.hpp 568078 2007-08-21 11:43:25Z amassari $

 */

/**

  * This interface permits a DOM implementer to supply one or more

  * implementations, based upon requested features. Each implemented

  * <code>DOMImplementationSource</code> object is listed in the

  * binding-specific list of available sources so that its

  * <code>DOMImplementation</code> objects are made available.

  * <p>See also the <a href='http://www.w3.org/TR/2002/WD-DOM-Level-3-Core-20020409'>Document Object Model (DOM) Level 3 Core Specification</a>.

  *

  * @since DOM Level 3

  */

#include <xercesc/util/XercesDefs.hpp>

XERCES_CPP_NAMESPACE_BEGIN

class DOMImplementation;

class CDOM_EXPORT DOMImplementationSource

{

protected :

    // -----------------------------------------------------------------------

    //  Hidden constructors

    // -----------------------------------------------------------------------

    /** @name Hidden constructors */

    //@{    

    DOMImplementationSource() {};

    //@}

private:

    // -----------------------------------------------------------------------

    // Unimplemented constructors and operators

    // -----------------------------------------------------------------------

    /** @name Unimplemented constructors and operators */

    //@{

    DOMImplementationSource(const DOMImplementationSource &);

    DOMImplementationSource & operator = (const DOMImplementationSource &);

    //@}

public:

    // -----------------------------------------------------------------------

    //  All constructors are hidden, just the destructor is available

    // -----------------------------------------------------------------------

    /** @name Destructor */

    //@{

    /**

     * Destructor

     *

     */

    virtual ~DOMImplementationSource() {};

    //@}

    // -----------------------------------------------------------------------

    //  Virtual DOMImplementationSource interface

    // -----------------------------------------------------------------------

    /** @name Functions introduced in DOM Level 3 */

    //@{

    /**

     * A method to request a DOM implementation.

     *

     * <p><b>"Experimental - subject to change"</b></p>

     *

     * @param features A string that specifies which features are required.

     *   This is a space separated list in which each feature is specified

     *   by its name optionally followed by a space and a version number.

     *   This is something like: "XML 1.0 Traversal 2.0"

     * @return An implementation that has the desired features, or

     *   <code>null</code> if this source has none.

     * @since DOM Level 3

     */

    virtual DOMImplementation* getDOMImplementation(const XMLCh* features) const = 0;

    //@}

};

XERCES_CPP_NAMESPACE_END

#endif